Hat block



April 18, 1933.

G. P. PAPADOPOULOS HAT BLOCK 5 Sheets-Sheet 1 Filed Nov. 2, 1951Inventor April 18, 1933 ca. P. "PAPADOPOULOS 1,903,912

HAT BLOCK Fi1edNov.. 1951 3 Sheets-Sheet 2 I if @650 ou/ou' April 18,1933- e. P. PAPADOPOULOS 1,903,912

HAT BLOCK Filed Nov. 12, 1951 3 Sheets-Sheet 3 E Inventor 7 gzfa/padowu/as f1 ltorney Patented Apr. 18, 1933 UNITED STATES PATENT OFFICEGEORGEBEYS PAULOS PAPADOPOIILOS, DETROIT, MICHIGAN, ASSIGNOR OF SIXTY-SIX AND TWO-T'HIRDS PER GENT TO A. VICTOR BIZER, OF DETROIT, MICHIGANHAT BLOCK Application filed November 12, 1931.

The present invention relates to new and useful improvements in hatblocks and has for its primary object to provide, in a manner ashereinafter set forth, a device of this character embodying a novelconstruction, combination and arrangement of parts through the medium ofwhich the device may be expanded or contracted simultaneously in fourdirections.

Other objects of the invention are to provide a hat block of theaforementioned character which will be simple in construction, strong,durable, elficient and reliable in operation and which may bemanufactured at low cost.

All of the foregoing and still further objects and advantages of theinvention wiil become apparent from a study of the followingspecification, taken in connection with the accompanying drawingswherein like characters of reference designate corresponding partsthroughout the several views, and wherein Figure 1 is a plan viewshowing a hat block constructed in accordance with the present inventionwith the sections in retracted position.

Figure 2 is a plan view of the hat block showing the sections extended.

Figure 3 is a detail View in cross section taken substantially on theline 33 of Figure 1 but with the sections extended.

Figure 4c is a sectional View taken sub-stantially on the line 14 ofFigure 1.

Figure 5 is a detail view in perspective of one of the end sections.

Figure 6 is a detail view in perspective of one of the side sections.

Figure 7 is a detail View in elevation of the securing means for themeta'lic guides.

Referring to the drawings in detail, it will be seen that the hat blockconstituting the present invention comprises a substantially ellipticalframe which is designated generally by the reference numeral 1, saidframe including the curved duplicate end sections 2 and the curved sidesections 3 which are also duplicate. The end and side sections areadapted for end abutting engagement with each other When said sectionsare in'retracted position.

Serial No. 574,629.

The end portions of the sections 2 are provided,'on their upper andlower sides, with the recesses 4 for slidably receiving the guides 5which are formed integrally with the metallic plates 6 which are rigidlysecured to the upper and lower sides of the sections 3 by securingelements comprising the headed, V threadedly connected male and femaleelements 7 and 8, respectively, which are illustrated in detail inFigure 7 of the drawings. '30

The guides 5 extend at an angle from the metallic plates 6 and arealigned with the end portions of the sections 2. The end portions of thesections 2 are provided with the sots 9 which terminate in spacedrelation to the 5 ends of said sections 2, as best seen in Figure 5 ofthe drawings. Operable in the slots 9 are the pins 10 which extendbetween the pairs of guides 5. Sleeves 11 are rotatably mount- I ed onthe pins 10 for travel in the slots 9.

Extending from the slots 9 to the ends of the sections 2 are the grooves12 in the upper and lower sides of said sections 2.- The grooves 12 arealigned with the grooves 13 in the upper and lower sides of the sections3.

here state that the metallic plates 6 are countersunk in the upper andlower sides of the sections 3, said sections 3 being recessed, as at 17to accommodate the plates. The guide rods 15 extend adjacent the guidearms 5 and the metallic plates 6 provide means for securing said guiderods 15 in position.

The opposed faces of the side sections 3 are provided with sockets 18for the reception of the outer end portions of the oppositely threadedscrews 19 which are anchored in said side sections by the pins 20. Aturnbuckle 21 in the form of a handle is operatively connected with theoppositely threaded screws 19 for simultaneously mov ing said screwsoutwardly or inwardly.

In use, when the side sections 3 are caused to move away from or towardeach other by rotation of the turnbuckle 21, the end sections 2 are alsocaused to move simultaneously toward or away from each other through themedium of the pins and sleeves 10 and 11 which are carried on the guidearms 5 and which travel in the slots 9. The guide rods 15 preventwobbling of the sections relative to each other and cause the ends ofsaid sections to be brought squarely together when the sections aremoved to fully retracted position.

It is believed that the many advantages of a hat block constructed inaccordance with the present invention will be readily understood, andalthough the preferred embodiment of the invention is as illustrated anddescribed, it is to be understood that changes in the details ofconstruction and in the combination and arrangement of parts may beresorted to which will fall within the scope of the invention asclaimed.

What is claimed is 1. A hat block comprising a pair of side sections anda pair of end sections, said end sections having slots therein, meansoperatively connected with the side sections for shifting said sidesections in opposite directions simultaneously, guide arms mounted onthe side sections and extending slidably over the end sections, and pinsmounted on the guide arms and extending through the slots for shiftingthe end sections in opposite directions relative to each other uponactuation of the side sections.

2. A hat block comprising a pair of side sections, means operativelyconnected with the side sections for shifting said side sections inopposite directions simultaneously, plates secured on opposite sides ofthe side sections, guide arms formed integral with the ends of theplates and extending therefrom at an angle, end sections mountedslidably between the guide arms, said-end sections having slotstherein,and pins mounted on the guide arms and operable in the slots forshifting the end sections in opposite directions simultaneously uponactuation of the side sections.

8; A hat block comprising side sections and end sections adapted for endto end abutting engagement, said sections having aligned grooves intheir adjacent end portions, guide rods anchored in certain of thegrooves and engaged slidably in the other grooves, means operativelyconnected with certain of the sections for shifting said certainsections in opposite directions simultaneously, and means connecting theother sections with said certain sections for actuation thereby inopposite directions relative to each other.

4:. A hat block comprising side sections and end sections adapted forend to end abutting engagement, said sections having ably embracing saidother sections therebetween, said other sections having slots therein,and pins extending between the pairs of guide arms and operable in theslots.

In testimony whereof I afiiX my signature.

GEORGEBEYS PAULOS PAPADOPOULOS,

